Craftsman 875.191174 Owner's manual

Brand: Craftsman

Model: 875.191174

Category: Power tools

Type: Owner's manual

Owner's Manual

Pneumatic 3/8" Drive

RATC ET

Model No.

875.191174

WARNING:

Before operating tool, read this

manual and follow all

Safety Recommendations and

Operating Instructions.

Safety

Warranty

Features & Operation

Maintenance

Espa_ol

Distributed by Sears,

www,Sears,com

Roebuck and Co.,

Hoffman

Estates,

IL 60179

iNSTRUCTiONS PERTAiNiNG TO A RiSK OF FIRE, ELECTRIC SHOCK, OR

iNJURY TO PERSONS

WARNING- Some dust created by using power tools contains chemicals known to the

State of California to cause cancer and birth defects or other reproductive harm

WARNING-When using the product, basic precautions should always be

followed, including the following:

General: To reduce the risks of electric shock, fire, and injury to persons,

read all the instructions before using the tool.

Work area

t, Keep the work area clean and well lighted, Cluttered benches and dark areas

increase the risks of electric shock, fire and injury to persons.

2. Do not operate the tool in explosive atmospheres, such as in the presence

of flammable liquids, gases, or dust. The tool is able to create sparks resulting in

the ignition of the dust orfumes.

3. Keep bystanders, children, and visitors away while operating the product.

Distractions are able to result in the loss of control of the tool.

Personal safety

1. Stay alert. Watch what you are doing and use common sense when operating

the product. Do not use the product while tired or under the influence of

drugs, alcohol, or medication. A moment of inattention while operating the tool increases

the risk of injury to persons.

2. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep

hair, clothing, and gloves away from moving paris. Loose clothes, jewelry, or long

hair increases the risk of injury to persons as a result of being caught in moving parts.

3, Remove adjusting keys and wrenches before turning the tool on. A wrench or a

key that is left attached to a rotating part of the tool increase the risk of personal injury.

4, Do not overreach. Keep proper footing and balance at all times, Proper footing

and balance enables better control of the tool in unexpected situations.

5. Use safety equipment. A dust mask, non-skid safety shoes and a hard hat must be used for

the applicable conditions.

6. Always wear eye protection.

7. Always wear hearing protection when using the tool. Prolonged exposure to high

intensity noise is able to cause hearing loss.

8. Disconnect the product from the air source before making any adjustments.

9. Avoid unintentional starting. Be sure the switch is off before connecting to

the air supply. Do not carry the tool with your finger on the switch or connect the tool to the

air supply with the switch on.

A CAUTION J

1. Inspect hose connection before each use;

2. Do not exceed 90psi when using pneumatic tools.

3. Do not kink, twist, knot or abrade hose.

Applicable Range:

is applicable for pneumatic tools and accessories.

Specifications:

Air tools Maximum Working Pressure .......... 90psi

Operation

Tool use and care

1. Use clamps or another practical way to secure and support the workpiece

to a stable platform. Holding the work by hand or against the body is unstable and to lead

to loss of control.

2. Do not force the tool. Use the correct tool for the application. The correct tool

will do the job better and safer at the rate for which the tool is designed.

3. Do not use the tool if the switch does not turn the tool on or off, Any tool that

cannot be controlled with the switch is dangerous and must be repaired.

4. Disconnect the tool from the air source before making any adjustments,

changing accessories, or storing the tool, Such preventive safety measures reduce

the risk of starting the tool unintentionally.

5. Store the tool when it is idle out of children and other untrained persons. A

tool is dangerous in the hands of untrained users.

6. Maintain the tool with care. Keep a cutting tool sharp and dean. A property maintained

too, with sharp cutting edges reduced the risk of binding and is easier to control.

7.Check for misalignment or binding of moving parts, breakage of parts, and

any other condition that affects the tool's operation, if damaged, have the tool

serviced before using. Many accidents are caused by poorly maintained tools. There is a risk

of bursting if the tool is damaged.

8 Use only accessories that are identified by the manufacturer for the specific

tool model. Use of an accessory not intended for use with the specific tool model, increases

the risk of injury to persons.

ENG-3

Service

1. Too| service must be performed on|y by qualified repair personne|.

2. When servicing a tool, use only identical replacement parts. Use only

authorized parts.

3. Use only the lubricants supplied with the tool of specified by the

manufacturer.

Air source

1. Never connect to an air source that is capable of exceeding 115psi.Over

pressurizing the tool is able to result in busting, abnormal operation, and breakage of the

tool or serious injury to persons. Use only clean, dry, regulated compressed air at the rated

pressure or within the rated pressure range as marked on the tool. Always verify prior to using

the tool that the air source has been adjusted to the rated air pressure or within the rated

air-pressure range.

2. Never use oxygen, carbon dioxide, combustible gases or any bottled gas as an air source for

the tool. Such gases are capable of explosion and serious injury to persons.

USER-MAINTENANCE INSTRUCTIONS

SAVE THESE iNSTRUCTiONS

ENG-4

ReadOperatingInstructions

Pleasebecomefamiliarwithalltheinstructionsand

warningsbeforeoperatinganypneumatictool.

AlwaysWearApprovedEyeProtection

Impactresistanteyeprotectionshouldmeetorexceed

thestandardssetforthinANSIZ87.1,Occupationaland

EducationalEyeandFaceProtection.Lookformarking

Z87.1onyoureyeprotectiontoensurethatitisan

approvedstyle.

HearingProtectionisRecommended

Hearingprotectionshouldbeusedwhenthenoiselevel

exposureequalsorexceedsan8hourtime-weighted

averagesoundlevelof85dBA.Processnoise,reflective

surfaces,othertoolsbeingoperatednearby,alladdtothe

noiselevelinagivenworkarea.Ifyouareunableto

determineyournoiselevelexposure,werecommendthe

useofhearingprotection.

AvoidProlongedExposuretoVibration

Pneumatictoolscanvibrateduringuse.Prolonged

exposuretovibrationorveryrepetitivehandandarm

movementscancauseinjury.Discontinuetheuseofany

toolifyouexperiencetingling,numbness,discomfortor

paininyourhandsorarms.Youshouldconsultyour

physicianbeforeresuminguseoftool.

90PSIMaximum

Thistoolisdesignedtooperateatanairpressureof90

poundspersquareinchgaugepressure(90PSI)

maximum,atthetool.Useofhigherairpressurecan,and

maycauseinjury.Also,theuseofhigherairpressure

placestheinternalcomponentsunderloadsand

stressestheywerenotdesignedfor,causingpremature

toolfailure.

NOTE:THEAIRSUPPLYSHOULDBECLEAN,DRYAND

PREFERABLYLUBRICATED.FORBESTRESULTS

DRAINTHEMOISTUREFROMYOURCOMPRESSOR

DAILY.

Use Only Power Sockets & Accessories

Sockets and accessories used shall be of the power

socket type. Always check sockets, retainers and

drives regularly for wear or damage and replace when

necessary.

WARNING

Some dust created by power sanding, sawing, grinding,

drilling and other construction activities contains chemi-

cals known to the State of California to cause cancer, birth

birth defects or other reproductive harm.

Some examples of these chemicals are:

Lead from lead based paint

crystalline silica from bricks and cement

and other masonry products, and

arsenic and chromium from chemically-

treated lumber.

Your risk from those exposures varies, depending on how

often you do this type of work. To reduce your exposure to

these chemicals: work in a well ventilated area, and work

with approved safety equipment, such as dust masks that

are specifically designed to filter out microscopic par-

ticles.

FULLONE YEARWARRANTYON CRAFTSMANAIR-DRIVETOOLS

If this Craftsman tool fails to give complete satisfaction

within one year from the date of purchase, RETURN IT

TO THE NEAREST SEARSSTORE IN THE UNITED

STATES,and Sears will repair or replace it free of charge.

If this Craftsman tool is used for commercial or rental

purposes, this warranty applies for only 90 days from the

date of purchase. This warranty gives you specific legal

rights, and you may also have other rights which vary

from state to state.

Distributed by Sears, Roebuck and Co.

Hoffman Estates, IL 60179.

The Craftsman Model 875.191174 3/8" Drive Ratchet

Wrench is designed for applications such as automotive

repair, general assembly, transmission teardown and

maintenance. Features include a lever throttle for speed

control and low profile head for work in close quarters.

Features

Lever throttle for ease of operation.

1-1/8" Ratchet head height (without socket) for use in

close-quarter applications.

Front exhaust directs air away from operator.

Specifications

Drive size......................................................................................3/8"

Free speed (No Load) ..............................................160 RPM

Ultimate torque .........................................................45 ft. Ibs.

Weight ..................................................................................21/2Ibs.

Overall length .............................................................................10"

Average air consumption ......................................3.2 SCFM

Recommended hose size ........................................3/8" I.D.

Air inlet .................................................................................1/4" NPT

Maximum Air Pressure ...................................................90 PSI

Pre-Operation

Before the tool is connected to the air supply, clear the air

hose of accumulated dust and moisture by running air

freely through the air hose for 5-10 seconds. Before

removing a tool for service, make sure the air line is shut-

offat the compressor. This will prevent the tool from

operating if the throttle is accidently engaged.

Installation (See figure 1)

This tool is designed to operate at 90 psi. Lower pres-

sure (below 90 psi) will reduce performance of the tool

while higher air pressure (over 90 psi) raises the perfor-

mance of the tool beyond its rated capacity and could

cause serious damage to tool and user.

Always use clean dry air. Excessive moisture and dirt will

greatly reduce the life of any air motor. We recommend

the installation of an in-line filter-regulator-lubricator as

close to the tool as possible.

A 3/8" air hose is required up to a length of 8 ft. If more

length is required a 1/2" air hose should be used at the

compressor. Attach a 3/8" whip hose for the remaining

4 - 8 ft. for flexibility. Be sure all hoses and fittings are the

correct size and tightly secured before using air tool.

::_ Auto Drain

_ Valve

More than 1/100 slope

Stop

VaJve

Filter

Regulator

Lubricator

Air Tool

Figure 1

Air Hose Hook Up

Main line = 3 times

Tool inlet/hose size

Stop

Valvel

Air Compressor

WARNING: BISCONNECTTOOL FROM AIR SUPPLY

BEFORE SERVICING OR CHANGING SOCKETS, This

ratchet is equipped with a lever throttle which allows the

operator to vary the speed. Direction control is located on

the back of the ratchet head. Initial tightening and loosen =

ing of fasteners should be done manually with ratchet

used as a hand tool. Fasteners may then be run on and

off with relative ease.

Keep socket firmly against work surface when running the

ratchet to avoid dislodging the socket from the anvil.

Excessive torque leverage above tool specifications will

result in premature gear wear.

Reverse Switch

Figure 2

t-- Air Inlet

Throttle Lever

Lubrication

An in-line filter-regulator=lubricator (fig 1) is recommended

as it increases tool life and keeps the tool in sustained

operation. The in-line lubricator should be regularly

checked and filled with air tool oil. Proper adjustment of

the in-line lubricator is performed by placing a sheet of

paper next to the tools exhaust ports and holding the

throttle open approximately 30 seconds. The lubricator is

properly set when a light stain of oil collects on the paper.

Excessive amounts of oil should be avoided.

In the event that it becomes necessary to store the tool for

an extended period of time (overnight, weekend, etc.), it

should receive a generous amount of lubrication through

the air inlet (fig 2). The tool should be run for

approximately 30 seconds to ensure oil has been evenly

distributed throughout the tool. The tool should be stored

in a clean and dry environment.

Recommended lubricants: Use air tool oil or any other

high grade turbine oil containing moisture absorbent, rust

inhibitors,metal wetting agents and an EP (extreme

pressure) additive. (See Fig. 2 for location/air inlet).

Sears CRAFTSMAN Model 875.191174

Pneumatic 3/8" Drive Ratchet Wrench

Exploded View and Parts List

//12

./ 13

r/19

Ref.

Part No.

985001G

985002-01G

985003G

9150070G

9106464G

9106465G

9106365G

9106467G

946011G

927503G

985011G

9106469G

9106470G

9106471G

9106472G

9106473G

9106686G

9106476G

9106477G

985020G

9106680G

915012-02G

9145024G

Description Q'ty

Housing 1

Air Inlet Bushing 1

Washer 1

O-Ring 1

Valve Stem 1

Valve Spring 1

O-Ring 1

Valve Screw 1

Throttle Lever Pin 1

Valve Bushing 1

Throttle Lever 1

Ball Bearing 1

Rear End Plate 1

Rotor Blade 4

Rotor 1

Spring Pin 2

Cylinder 1

Front End Plate 1

Ball Bearing 1

Exhaust Deflector 1

Bearing Cap 1

Internal Gear 1

Clamp Nut 1

Ref. Part No. Description

24 9150140G Planet Gear

25 9106482G Idle Gear Seat

26 9106481G Needle Roller

27 985047G Handle Grip

28 9106484G Anvil Bushing

29 9106485G Needle Bearing

30 915038G Reverse Switch

31 915042G Washer

32 9150190G Ratchet Housing

33 9150180G Ratchet Anvil

34 9106491G Spring

35 9106490G Locking Pin

36 9150360G Ratchet Pawl

37 9106500G Retainer Ring

38 9150320G Thrust Washer

39 9150370G Pin

40 9106497G Steel Ball

41 9106496G Spring

42 9106486G Crank Shaft

43 9106698G Drive Bushing

44 9115023G Ratchet Yoke

45 9150430G Steel Ball

46 9150440G Spring

Q'ty

Troubleshooting

Tool runs slowly or will not operate

1.Grit or gum in tool

1. Flush the tool with air tool oil or gum

solvent.

2. No oil in tool

3. Low air pressure

4. Air hose leaks

5. Pressure drops

6. Worn rotor blade in motor

7. Worn ball bearing in motor

2. Lubricate the tool according to the lubrication

instructions in this manual

3.a. Adjust the regulator on the tool to the maxi-

mum setting

b. Adjust the compressor regulator to tool

maximum of 90 psi.

4.Tighten and seal hose fittings if leaks are found

use pipe thread tape.

5.a. Be sure the hose is the proper size. Long

hoses or tools using large volumes of air may

require a hose with an I.D. of 1/2" or larger

depending on the total length of the hose

b. Do not use a multiple number of hoses

connected together with quick connect fittings.

This causes additional pressure drops and

reduces the tool power. Directly connect the

hoses together

6. Replace rotor blade

7. Remove and inspect bearing for rust, dirt and

grit. Replace or clean and grease bearing with

bearing grease

Moisture blowing out of tool exahust 1.Water in tank 1.Drain tank. (See air compressor manual). Oil tool

and run until no water is evident. Oil tool again and

run 1-2 seconds

Impacts slowly or will not impact 1. Lack of lubrication

2.Tool regulator set in wrong

position

3. In-line regulator or

compressor regulator

set too low

1.Lubricate the air motor and the impact mechanism.

(See Lubrication section of this manual)

2. Adjust the regulator on the tool to the maximum

setting

3. Adjust regulators in the air system

Impacts rapidly but

1. Worn impact mechanism 1.Replace worn impact mechanism components

will not remove bolts

Does not impact 1. Broken impact mechanism 1.Replace broken impact mechanism components

Page is loading ...

Service Notes:

For the repair or replacement

parts you need delivered directly to your home

Call 7 am - 7 pm, 7 days a week

1-800-366-PART

(1-800-366-7278)

Para ordenar piezas con entrega

a domicilio - 1-800-659-7084

For the location of a

Sears Parts and Repair Center

in your area

Call 24 hours a day, 7 days a week

1-800-488-1222

For more information on

purchasing a Sears

Maintenance Agreement or to inquire

about an existing Agreement

Call 9 am - 5 pm, Monday-Saturday

1-800-827-6655

The model number of your air tool is located

on the serial plate attached to the tool.

When requesting service or ordering parts,

always give the following information:

• Product Type • Pneumatic Tool

• Model Number • Part Description

SEARS

Distributed by Sears, Roebuck and Co., Hoffman Estates, IL 60179 USA

Craftsman 875.191174 Owner's manual

Brand: Craftsman

Model: 875.191174

Category: Power tools

Type: Owner's manual

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